基本解釋[醫(yī)藥科學(xué)]相對光密度專業(yè)釋義醫(yī)藥科學(xué)相對光密度They are mainly in the dorsomedial hypothalamic nucleus and around fornix of hypothalamus. The relative optical density(ROD) of orexin A was larger in the nicotine-exposed neonates than that in the saline neonates(P<0.05).模型組下丘腦orexin A的相對光密度值高于對照組,差別有統(tǒng)計學(xué)意義(P<0.05)。